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A vfto test system and method capable of evaluating the reliability of a secondary system

A secondary system and test system technology, applied in the direction of emergency protection circuit devices, instruments, and data processing applications used to limit overcurrent/overvoltage, can solve the problems of difficult capture and evaluation of lightning strike overvoltage

Active Publication Date: 2022-04-05
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Many outdoor secondary systems are prone to VFTO after lightning flashover (VFTO is a very fast transient overvoltage, which refers to the transient overvoltage within the wave front time of 3 to 100ns, mainly due to factors such as the operation of the isolation switch in the GIS Caused by the compound overvoltage caused by lightning in the secondary system, it is difficult to capture the lightning overvoltage and VFTO overvoltage, so it is difficult to analyze the impact of the compound overvoltage of VFTO on the secondary system after lightning flashover to evaluate

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  • A vfto test system and method capable of evaluating the reliability of a secondary system
  • A vfto test system and method capable of evaluating the reliability of a secondary system
  • A vfto test system and method capable of evaluating the reliability of a secondary system

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[0040] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to figure 1 , which is a schematic structural diagram of a VFTO test system that can evaluate the reliability of the secondary system provided by the embodiment of the present application. Depend on figure 1 It can be seen that the VFTO test system that can evaluate the reliability of the secondary system includes ...

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Abstract

The invention discloses a VFTO test system and method capable of evaluating the reliability of a secondary system. The system includes the main console subsystem, the impulse voltage generator subsystem and the secondary system reliability analysis subsystem. This application uses the main console subsystem and the impulse voltage generator subsystem to generate a composite overvoltage of VFTO after a lightning flashover, and the lightning overvoltage and VFTO overvoltage parameters can be adjusted and changed to simulate on-site working conditions. In addition, compared with the inconvenience of secondary system reliability research at the research site, the present invention adopts a simple, convenient and operable method to solve the secondary system hardware failure and software failure under the compound overvoltage of VFTO after lightning flashover Faults are tested separately for reliability.

Description

technical field [0001] The present disclosure relates to the technical field of secondary systems, in particular to a VFTO test system and method capable of evaluating the reliability of secondary systems. Background technique [0002] At this stage, energy resources are being optimally allocated across the country on a large scale, and my country has gradually formed a wide-area complex power grid with power transmission from west to east and cross-regional interconnection. The Northeast Power Grid, North China Power Grid, Northwest Power Grid, Central China Power Grid, East China Power Grid and Southern Power Grid are all related to a certain extent. When the power system fails, in addition to destroying power equipment, it will also affect the normal production of power production and many industries, and even pose a threat to social electricity consumption. Using various sensor technologies, wide-area communication technologies and information processing technologies in...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06H02H9/04
CPCH02H9/04G06Q10/0639G06Q50/06
Inventor 谭向宇周利军王科彭晶赵现平马仪周年荣张文斌黄星程志万马国明
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST